Kozelek filled in on the guitar during the show, including playing on the Postal Service song "Such Great Heights." A fan in the audience caught a frustratingly short bit of the performance and posted it to Instagram:

Another fan caught the entire performance of the new Death Cab tune, "Black Sun":

(The two recently made their friendship super official by posting a long email conversation online that they've been having, wherein we discovered Kozelek was a little jealous about the Postal Service.)

Gibbard was in need of a little friendly assistance at the concert because he recently broke his wrist running in the Orcas Island 50K. According to a post on Instagram, he "banana peeled on a super-slick bridge."

Fans of Kozelek will soon have more cause for happiness, as Sun Kil Moon just announced the impending release of a new album, Universal Themes, set to come out June 2.